| Displacement | 438t standard, 453t trial |
|---|---|
| Length | 46.5m pp, 49.0m wl |
| Width | 6.7m |
| Draught | 2.75m |
| Machinery | 2-shaft diesel, 1700bhp |
| Speed | 16kt |
| Armament | 1-8cm/40cal AA gun, 2-13.2mm AA, 36 DCs |
| Complement | ? |
| Name | Plan | Builder | Laid down | Launch | Complete | ||
|---|---|---|---|---|---|---|---|
| CH-13 | FY1937 | Tsurumi SB | 1939. 7.18 | 1940. 3.30 | 1940. 7.15 | CH | 1943. 4. 3 sunk (torpedoed, off Kamaishi) [41.03N, 141.58E] 1943. 5. 1 disc |
| CH-14 | FY1937 | Tama SB | 1940. 6. 6 | 1940.11.29 | 1941. 3.31 | CH | 1945. 7.28 sunk (air attack, Owase) [34.05E, 136.15E] 1945.11.30 disc |
| CH-15 | FY1937 | Osaka IWks | 1940. 8.26 | 1940.12.23 | 1941. 3.31 | CH | 1945.11.30 disc 1948 BU |
| CH-16 | FY1937 | Nihon Kokan | 1940. 4.22 | 1940.11.19 | 1941. 4. 5 | CH | 1944. 7. 4 sunk (air attack, Chichijima) 1944. 9.10 disc |
| CH-17 | FY1937 | Ishikawajima SB | ? | 1941. 5. 3 | 1941. 7.31 | CH | 1945. 4.28 sunk (torpedoed, near Goto Is) [32.25N, 128.46E] 1945. 5.25 disc |
| CH-18 | FY1937 | Nihon Kokan | ? | 1941. 4.23 | 1941. 7.31 | CH | 1944.12.30 sunk (air attack, W of Luzon) [17.00N, 123.00E] 1945. 3.10 disc |
| CH-19 | FY1937 | Harima SB | ? | 1941. 6. 3 | 1941. 9.20 | CH | 1947. 5. 3 disc 1948 BU |
| CH-20 | FY1937 | Tama SB | ? | 1941. 5.29 | 1941. 8.20 | CH | 1947. 5. 3 disc 1948 BU |
| CH-21 | FY1937 | Osaka IWks | ? | 1941. 5.21 | 1941. 8.20 | CH | 1945.10. 5 disc 1947.10. 7 to UK, BU |
| CH-22 | FY1937 | Mitsubishi, Yokohama | ? | 1941. 5.29 | 1941.10.12 | CH | 1944. 2.19 sunk (air attack, New Ireland) [03.04S, 150.42E] 1944. 3.31 disc |
| CH-23 | FY1937 | Harima SB | ? | 1941. 8.13 | 1941.11.15 | CH | 1945.10.25 disc 1948 BU |
| CH-24 | FY1937 | Osaka IWks | ? | 1941.10.10 | 1941.12.20 | CH | 1944. 2.17 sunk (action, near Truk) [07.10N, 150.35E] 1944. 4.30 disc |
| CH-25 | FY1937 | Mitsubishi, Yokohama | ? | 1941.10. 7 | 1941.12.29 | CH | 1942. 7.15 sunk (torpedoed, off Kiska) [52.02N, 177.42E] 1942. 7.20 disc |
| CH-26 | FY1937 | Nihon Kokan | ? | 1941. 8.28 | 1941.12.20 | CH | 1945. 7.30 sunk (air attack, off Chinkai) [34.47N, 128.27E] 1945. 9.15 disc |
| CH-27 | FY1937 | Ishikawajima SB | ? | 1941.11. 5 | 1942. 1.28 | CH | 1942. 7.15 sunk (torpedoed, off Kiska) 1942. 7.20 disc |